1f46: Difference between revisions

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{{STRUCTURE_1f46|  PDB=1f46  |  SCENE=  }}  
{{STRUCTURE_1f46|  PDB=1f46  |  SCENE=  }}  


'''THE BACTERIAL CELL-DIVISION PROTEIN ZIPA AND ITS INTERACTION WITH AN FTSZ FRAGMENT REVEALED BY X-RAY CRYSTALLOGRAPHY'''
===THE BACTERIAL CELL-DIVISION PROTEIN ZIPA AND ITS INTERACTION WITH AN FTSZ FRAGMENT REVEALED BY X-RAY CRYSTALLOGRAPHY===




==Overview==
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In Escherichia coli, FtsZ, a homologue of eukaryotic tubulins, and ZipA, a membrane-anchored protein that binds to FtsZ, are two essential components of the septal ring structure that mediates cell division. Recent data indicate that ZipA is involved in the assembly of the ring by linking FtsZ to the cytoplasmic membrane and that the ZipA-FtsZ interaction is mediated by their C-terminal domains. We present the X-ray crystal structures of the C-terminal FtsZ-binding domain of ZipA and a complex between this domain and a C-terminal fragment of FtsZ. The ZipA domain is a six-stranded beta-sheet packed against three alpha-helices and contains the split beta-alpha-beta motif found in many RNA-binding proteins. The uncovered side of the sheet incorporates a shallow hydrophobic cavity exposed to solvent. In the complex, the 17-residue FtsZ fragment occupies this entire cavity of ZipA and binds as an extended beta-strand followed by alpha-helix. An alanine-scanning mutagenesis analysis of the FtsZ fragment was also performed, which shows that only a small cluster of the buried FtsZ side chains is critical in binding to ZipA.
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{{ABSTRACT_PUBMED_10880432}}


==About this Structure==
==About this Structure==
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[[Category: Inner membrane]]
[[Category: Inner membrane]]
[[Category: Transmembrane]]
[[Category: Transmembrane]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 02:39:30 2008''

Revision as of 02:39, 1 July 2008

File:1f46.png

Template:STRUCTURE 1f46

THE BACTERIAL CELL-DIVISION PROTEIN ZIPA AND ITS INTERACTION WITH AN FTSZ FRAGMENT REVEALED BY X-RAY CRYSTALLOGRAPHYTHE BACTERIAL CELL-DIVISION PROTEIN ZIPA AND ITS INTERACTION WITH AN FTSZ FRAGMENT REVEALED BY X-RAY CRYSTALLOGRAPHY

Template:ABSTRACT PUBMED 10880432

About this StructureAbout this Structure

1F46 is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.

ReferenceReference

The bacterial cell-division protein ZipA and its interaction with an FtsZ fragment revealed by X-ray crystallography., Mosyak L, Zhang Y, Glasfeld E, Haney S, Stahl M, Seehra J, Somers WS, EMBO J. 2000 Jul 3;19(13):3179-91. PMID:10880432

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